Switch method and apparatus with cut-through routing for use in a communications network
US7602712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2004 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Oct 21, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/555
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment of the invention provides a method of operating a switch with cut-through routing in a communications network. The method includes receiving a packet at a first port of the switch and determining a second port of the switch from which the received packet is to be forwarded out over the network. At least one authentication check is performed on the received packet. In general, the switch starts to forward the received packet from the second port prior to complete reception of the packet at the first port. However, this onward transmission is delayed until the authentication check has completed. This ensure that none of the received packet is forwarded from the second port if any authentication check fails.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.